Crops thrive on manure; fertilizer is indispensable in agricultural production, and organic fertilizer is particularly popular. So what exactly is organic fertilizer? Let's find out.
What kind of fertilizer is organic fertilizer?
Organic fertilizer refers to fertilizers made from plants, animals, and natural minerals, including human excrement, livestock and poultry manure, composted crop straw, oil pressing by-products such as soybean cake, cottonseed cake, rapeseed cake, and other cake fertilizers, as well as fresh plants that have been directly turned over during cultivation.
Types of organic fertilizers
1. Plant organic fertilizer
Organic fertilizers made from various plants, such as compost, cottonseed, alfalfa, soybean meal, and seaweed. Plant-based organic fertilizers are characterized by their low nutrient content, making them excellent for improving soil structure.
2. Animal organic fertilizer
These are fertilizers made from animal blood, bones, or fish, and they are high in nutrients. Granular animal organic fertilizers, such as blood fertilizer and bone fertilizer, are excellent slow-release fertilizers that can be slowly released throughout the season.
3. Mineral organic fertilizer
Strictly speaking, it is not organic fertilizer because it does not contain carbon. Mineral fertilizers are indispensable in fertilizers and can provide the trace elements needed for vegetable growth. For example, phosphate rock can provide nutrients such as nitrogen, phosphorus, and potassium.
4. Solid organic fertilizer
Solid organic fertilizers are usually available in granular and powder form. When using them, the fertilizer is mixed into the soil and watered to allow the soil microorganisms to decompose the organic fertilizer, which is then absorbed by the plants.
5. Liquid organic fertilizer
Liquid organic fertilizers are generally available in concentrated form and must be diluted with water before use. Liquid organic fertilizers are more easily absorbed by plants.
